Inside NASA's space shuttle Challenger disaster that could have been stopped 40 years ago

Forty years ago, the Challenger space shuttle disintegrated just after lift-off. A small team of engineers tried to prevent ...
Space.com

40 years after the space shuttle Challenger disaster, spaceflight remains far from routine

Challenger exploded 73 seconds after liftoff while carrying seven people, including "Teacher in Space" participant Christa McAuliffe. Nobody survived the launch on Jan. 28, 1986 from NASA's Kennedy ...